Travel mug



FIG. 1 is perspective view of a travel mug showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The subject matter shown in broken line, and any surfaces of the design not shown, including interior surfaces, forms no part of the claimed design. 

I claim the ornamental design for a travel mug, as shown and described. 